def integral 3
tried splitting sinnx in sin(x + (n-1)x), but bhot badi term bangayi jisme mujhe sir byparts dikhrahi lagani, but bhot time lagjayega usme 5-6 baar lagani pdjegi
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@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.1-cos(2x) is 2sin²x. Toh this becomes sin²nx/sin²x which is a standard reduction thingy I believe?
Standard reduction?
Yeah. Iirc take csc²x and sin²(nx) and do by parts on it
Ohh
Okay
+solved @SirLancelotDuLac
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